diff --git a/src/authorties.ts b/src/authorties.ts
new file mode 100644
index 0000000..925445f
--- /dev/null
+++ b/src/authorties.ts
@@ -0,0 +1,12 @@
+
+export const [
+  VIEW_USER,
+  MAINTAIN_USER,
+  VIEW_GROUP,
+  MAINTAIN_GROUP,
+  ] = [
+  "VIEW_USER",
+  "MAINTAIN_USER",
+  "VIEW_GROUP",
+  "MAINTAIN_GROUP",
+]
\ No newline at end of file
diff --git a/src/middleware.ts b/src/middleware.ts
index f97f81e..4a01e15 100644
--- a/src/middleware.ts
+++ b/src/middleware.ts
@@ -1,21 +1,26 @@
 import { NextRequestWithAuth, withAuth } from "next-auth/middleware";
 import { authOptions } from "@/config/authConfig";
 import { NextFetchEvent, NextResponse } from "next/server";
+import { PRIVATE_ROUTES } from "./routes";
 
-const PRIVATE_ROUTES = [
-  "/analytics",
-  "/dashboard",
-  "/home",
-  "/invoice",
-  "/projects",
-  "/tasks",
-  "/settings",
-  "/material",
-];
 const LANG_QUERY_PARAM = "lang";
 
 const authMiddleware = withAuth({
   pages: authOptions.pages,
+  callbacks: {
+    authorized: ({ req, token }) => {
+      if (!Boolean(token)) {
+        return Boolean(token)
+      }
+      
+      // example
+      // const abilities = token!.abilities as string[]
+      // if (req.nextUrl.pathname.endsWith('/user') && 'abilities dont hv view/maintain user') {
+      //   return false
+      // }
+      return true
+    }
+  }
 });
 
 export default async function middleware(
@@ -36,4 +41,4 @@ export default async function middleware(
   return PRIVATE_ROUTES.some((route) => req.nextUrl.pathname.startsWith(route))
     ? await authMiddleware(req, event) // Let auth middleware handle response
     : NextResponse.next(); // Return normal response
-}
+}
\ No newline at end of file
diff --git a/src/routes.ts b/src/routes.ts
new file mode 100644
index 0000000..7862f52
--- /dev/null
+++ b/src/routes.ts
@@ -0,0 +1,10 @@
+export const PRIVATE_ROUTES = [
+    "/analytics",
+    "/dashboard",
+    "/home",
+    "/invoice",
+    "/projects",
+    "/tasks",
+    "/settings",
+    "/material",
+  ];
\ No newline at end of file